Unitarized Chiral Perturbation Theory in a finite volume: scalar meson
  sector

A. Hart; A. Rusetsky; A.V. Anisovich; B. Borasoy; C. Liu; C. Liu; C. McNeile; C. Morningstar; D. Gamermann; E. Oset; E. Oset; G.P. Lepage; H. Suganuma; H. Wada; I. Caprini; J. Bulava; J. Foley; J. Gasser; J. Yamagata-Sekihara; J.A. Oller; J.A. Oller; J.A. Oller; J.A. Oller; J.J. Dudek; J.R. Pelaez; K. Sasaki; M. Asakawa; M. Döring; M. Döring; M. Lage; M. Lüscher; M. Lüscher; M.G. Alford; M.P. Locher; N. Kaiser; N. Mathur; R. Baron; S. Basak; S. Prelovsek; S.R. Beane; T. Kunihiro; U. -G. Meißner; U.J. Wiese; V. Bernard; V. Bernard; V. Kuznetsov; V. Shklyar; X. Li; Y. Nakahara

research

Unitarized Chiral Perturbation Theory in a finite volume: scalar meson sector

Authors: A. Hart
A. Rusetsky
A.V. Anisovich
B. Borasoy
C. Liu
C. Liu
C. McNeile
C. Morningstar
D. Gamermann
E. Oset
E. Oset
G.P. Lepage
H. Suganuma
H. Wada
I. Caprini
J. Bulava
J. Foley
J. Gasser
J. Yamagata-Sekihara
J.A. Oller
J.A. Oller
J.A. Oller
J.A. Oller
J.J. Dudek
J.R. Pelaez
K. Sasaki
M. Asakawa
M. Döring
M. Döring
M. Lage
M. Lüscher
M. Lüscher
M.G. Alford
M.P. Locher
N. Kaiser
N. Mathur
R. Baron
S. Basak
S. Prelovsek
S.R. Beane
T. Kunihiro
U. -G. Meißner
U.J. Wiese
V. Bernard
V. Bernard
V. Kuznetsov
V. Shklyar
X. Li
Y. Nakahara
Publication date: 1 January 2011
Publisher: 'Springer Science and Business Media LLC'
Doi

Abstract

We develop a scheme for the extraction of the properties of the scalar mesons f0(600), f0(980), and a0(980) from lattice QCD data. This scheme is based on a two-channel chiral unitary approach with fully relativistic propagators in a finite volume. In order to discuss the feasibility of finding the mass and width of the scalar resonances, we analyze synthetic lattice data with a fixed error assigned, and show that the framework can be indeed used for an accurate determination of resonance pole positions in the multi-channel scattering.Comment: 15 pages, 17 figure